CN215344927U - Lower step type centering support piece, loudspeaker and artificial intelligent sound box - Google Patents
Lower step type centering support piece, loudspeaker and artificial intelligent sound box Download PDFInfo
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- CN215344927U CN215344927U CN202120998389.9U CN202120998389U CN215344927U CN 215344927 U CN215344927 U CN 215344927U CN 202120998389 U CN202120998389 U CN 202120998389U CN 215344927 U CN215344927 U CN 215344927U
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- corrugation
- voice coil
- loudspeaker
- centering
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Abstract
The utility model relates to the technical field of intelligent sound boxes, and particularly discloses a lower-step type centering support piece, a loudspeaker and an artificial intelligent sound box. The utility model provides a lower-step type centering support piece, a loudspeaker and an artificial intelligent sound box, which can effectively inhibit the sound distortion problem of the loudspeaker and improve the sound quality.
Description
Technical Field
The utility model relates to the technical field of intelligent sound boxes, in particular to a lower-step type centering support piece, a loudspeaker and an artificial intelligent sound box.
Background
The centering support is one of common parts in the loudspeaker, and is mainly used for fixing the voice coil, reducing radial movement of the voice coil in the vibration process and further reducing sound distortion.
As shown in fig. 1 and 2, the conventional damper 1 is a wavy annular plate with a cross-section including a plurality of corrugations 602, and a central hole 601 is formed at the center thereof for fixing a voice coil. The corrugated structures 602 of the conventional spider 1 have the same size, and the linear supporting force for the voice coil is lack of variation, and researches show that the structure is not beneficial to inhibiting the radial movement of the voice coil, and particularly in a bass range, the radial vibration of the voice coil is obvious, and finally, a serious sound distortion problem occurs to a loudspeaker.
Therefore, it is necessary to improve the conventional spider to solve the problem that the radial vibration of the voice coil cannot be effectively suppressed, which easily results in significant sound distortion.
SUMMERY OF THE UTILITY MODEL
An object of the present invention is to provide a lower-step centering pad, a speaker and an artificial intelligence speaker, which can effectively improve the problem of sound distortion of the speaker caused by the same size of each corrugated structure, and improve the sound quality.
To achieve the above objects, in one aspect, the present invention provides a lower stepped centering pad, which is a wavy annular plate with a cross-sectional shape including a plurality of corrugations, and a central hole for fixing a voice coil is formed at a central position of the wavy annular plate, wherein the lower stepped centering pad is characterized in that,
the size of each corrugated structure is gradually reduced towards the direction far away from the central hole.
Optionally, the dimensions of the corrugated structure comprise a corrugation height and/or a corrugation width.
Optionally, the corrugation height of the next corrugation is 1/2 of the corrugation height of the previous corrugation.
Optionally, the corrugation width of the next corrugation is 1/2 of the corrugation width of the previous corrugation.
Optionally, the corrugated structures are sequentially connected to form a wave shape with alternately arranged wave crests and wave troughs;
the central aperture is located at the plane of the equilibrium position of each of the peaks and troughs.
Optionally, the centering support is made of cotton cloth or silk cloth.
On the other hand, the loudspeaker comprises any one of the lower step type centering support sheets, and further comprises a U-shaped iron, a basin frame, a cone and a voice coil;
one end of the basin frame is connected with the opening end of the U-shaped iron, and the other end of the basin frame is connected with the outer ring of the paper basin;
one end of the voice coil is fixedly connected to the inner ring of the basin frame, and the other end of the voice coil extends into the U-shaped iron;
the centre bore rigid coupling of lower ladder formula centering piece in the outside middle part of voice coil loudspeaker voice coil, the outer border portion rigid coupling of lower ladder formula centering piece in the inboard middle part of basin frame.
Optionally, the voice coil is close to the inside magnetic conductive plate that still is equipped with of one end of U iron, one side that the magnetic conductive plate kept away from the cone is equipped with magnet.
Optionally, a dust cap fixedly connected to the cone is arranged on one side of the voice coil, which is far away from the U-shaped iron.
In another aspect, an artificial intelligence speaker is provided, comprising any of the speakers.
The utility model has the beneficial effects that: the utility model provides a lower ladder formula centering piece, speaker and artificial intelligence audio amplifier, through the size relation that changes each ripple structure in the lower ladder formula centering piece in order to change the linear holding power of each ripple structure to the voice coil loudspeaker voice coil, and then restrain the radial motion of voice coil loudspeaker voice coil, reduce the sound distortion of speaker, improve sound tone quality.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic top view of a conventional centering chip provided in the background art;
FIG. 2 is a cross-sectional view of a conventional centering chip provided in the background art;
fig. 3 is a schematic cross-sectional view of a speaker according to an embodiment;
fig. 4 is an external schematic view of a speaker provided in the embodiment;
fig. 5 is a schematic cross-sectional view of a lower stepped centering branch provided by an embodiment.
In the figure:
1. a conventional centering disk;
2. iron U;
3. a basin stand;
4. a paper basin;
5. a voice coil; 501. a paper tube; 502. a coil;
6. a lower stepped centering branch piece; 601. a central bore; 602. a corrugated structure; 603. wave crest; 604. a trough of a wave; 605. an outer edge portion;
7. a dust cap;
8. a magnetic conductive sheet;
9. a magnet;
10. a wiring terminal;
11. and (4) cotton silk conducting wires.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, the terms "long", "short", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention, but do not indicate or imply that the referred devices or elements must have the specific orientations, be configured to operate in the specific orientations, and thus are not to be construed as limitations of the present invention.
The technical scheme of the utility model is further explained by the specific implementation mode in combination with the attached drawings.
The embodiment provides an artificial intelligence audio amplifier, includes the casing and is located the speaker of casing, refer to fig. 3 and 4, the speaker includes U iron 2, basin frame 3, cone 4, voice coil 5 and lower ladder formula centering branch piece 6.
One end of the basin frame 3 is connected with the open end of the U-shaped iron 2, and the other end of the basin frame 3 is connected with the outer ring of the paper basin 4.
The voice coil 5 comprises a paper tube 501 with one end fixedly connected with the inner ring of the basin frame 3 and a coil 502 wound on the outer surface of the other end of the paper tube 501, and the end of the paper tube 501 wound with the coil 502 extends into the U-shaped iron 2.
The center hole 601 of the lower stepped centering support 6 is fixedly connected to the middle part of the outer side of the voice coil 5, and the outer edge part 605 of the lower stepped centering support 6 is fixedly connected to the middle part of the inner side of the basin stand 3.
One side of the voice coil 5, which is far away from the U-shaped iron 2, is provided with a dustproof cap 7 fixedly connected with the cone 4 so as to prevent dust from entering a closed space enclosed by the dustproof cap 7, the cone 4, the basin frame 3 and the U-shaped iron 2.
Two wiring terminals 10 are fixedly arranged on the outer side of the basin frame 3, and two wire ends of the coil 502 are electrically connected with one wiring terminal 10 through a cotton wire 11 respectively.
When the terminals 10 are connected to a power supply, the coil 502 generates a current, and vibrates in the magnetic field formed by the magnet 9, and this vibration is transmitted to the cone 4 to cause the cone 4 to deform, thereby generating a sound.
Optionally, the cotton thread lead 11 includes a cotton thread and a conductive metal layer coated on the outer side of the cotton thread. It can be understood that if the conventional copper core wire with an insulating layer is used, the copper core wire is relatively stiff and can generate a great blocking effect on the vibration of the voice coil 5, and the sound distortion is serious; if the copper wire is directly used, the copper wire is easy to greatly swing along with the vibration of the voice coil 5, and the transmission of the vibration of the voice coil 5 is also influenced. The cotton silk wire 11 that this embodiment provided can keep certain hardness in order to avoid along with the pendulum problem, can not be too stiff so that produce the effect of dragging to voice coil 5 again, so can effectively reduce the interference to voice coil 5 vibration transmission, improve sound tone quality.
Referring to fig. 5, in the present embodiment, the lower stepped centering branch 6 is a wavy annular plate, a central hole 601 for fixing the voice coil 5 is disposed at a central position of the wavy annular plate, a cross-sectional shape of the wavy annular plate includes a plurality of corrugated structures 602 connected in sequence, and a size of each of the corrugated structures 602 gradually decreases toward a direction away from the central hole 601.
Specifically, compared with the conventional stiffener 1, one of the most important differences of the stiffener provided by the present embodiment is: the corrugated structures 602 of the conventional damper 1 have the same size, and the size of each corrugated structure 602 in this embodiment is gradually reduced toward the direction away from the central hole 601, so that the structure is beneficial to changing the linear supporting force of each corrugated structure 602 on the voice coil 5, thereby greatly suppressing the vibration of the voice coil 5 in the radial direction, finally improving the problem of sound distortion of the speaker, and improving the sound quality of sound.
Furthermore, after a large number of experiments, statistics shows that the average sound distortion rate of the speaker in each frequency band is about 5% when the conventional centering branch 1 is used, and the average sound distortion rate of the speaker in each frequency band is about 3% when the downward-stepped centering branch 6 provided by this embodiment is used, so that the distortion rate is reduced by 40%, and the sound quality improvement effect is obvious.
Optionally, the dimensions of the corrugated structure 602 include a corrugation height h and/or a corrugation width b. Specifically, the corrugated structures 602 are connected in sequence to form a wave shape with alternately arranged peaks 603 and valleys 604; the central aperture 601 is located at the plane of the equilibrium position of each of the peaks 603 and valleys 604. The corrugation height h is a distance between the previous wave crest 603 and the next wave trough 604 along the axial direction, and the corrugation width b is a distance between two adjacent wave crests 603 or between two adjacent wave troughs 604.
Optionally, taking the direction pointing away from the central hole as the positive direction, the corrugation height h of the next corrugation 602 is 1/2 of the corrugation height h of the previous corrugation 602, and the corrugation width b of the next corrugation 602 is 1/2 of the corrugation width b of the previous corrugation 602; the number of the corrugated structures 602 is 2 to 5, preferably 3. At this time, the radial polarization elimination effect of the lower step type centering branch 6 is better, and the distortion rate is minimum. Furthermore, the centering support can be made of cotton cloth or silk-like cloth, and the effect of eliminating radial polarization is optimal.
In this embodiment, an end of the corrugated structure 602 of the outermost ring, which is far away from the central hole 601, is connected to an outer edge 605 for connecting with the frame 3, and the outer edge 605 is a flat ring structure so as to be bonded with the frame 3.
The lower ladder type damper 6 that this embodiment provided, the size of each ripple structure 602 reduces along the direction of keeping away from centre bore 601 gradually, so each ripple structure 602 is also different thereupon to the linear holding power that voice coil 5 provided, experiments prove, such structure is favorable to reducing the radial vibration of voice coil 5, and then improve traditional damper because the same sound distortion problem that leads to of each ripple structure 602 size, improve the sound tone quality of artificial intelligence audio amplifier in each frequency (especially bass range), be favorable to improving the awakening rate of artificial intelligence audio amplifier and improve the intelligent degree of artificial intelligence audio amplifier.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A lower step type centering support piece is a wavy annular sheet body with the cross section shape comprising a plurality of corrugated structures, a central hole for fixing a voice coil is arranged at the central position of the wavy annular sheet body, and the lower step type centering support piece is characterized in that,
the size of each corrugated structure is gradually reduced towards the direction far away from the central hole.
2. The lower stepped centering strut of claim 1, wherein dimensions of said corrugation structure comprise corrugation height and/or corrugation width.
3. The stepped down centralizer of claim 2, wherein the corrugation height of the next corrugation is 1/2 of the corrugation height of the previous corrugation.
4. The stepped down centralizer of claim 2, wherein the corrugation width of the next corrugation is 1/2 of the corrugation width of the previous corrugation.
5. The lower stepped centering disk of claim 2, wherein each of said corrugations are connected in series to form a wave shape having alternating crests and troughs;
the central aperture is located at the plane of the equilibrium position of each of the peaks and troughs.
6. The descending stair-step form of the centering pad of claim 1, wherein the centering pad is made of cotton or silk cloth.
7. A loudspeaker comprising the lower-step type centering support piece of any one of claims 1 to 6, further comprising a U-shaped iron, a basin frame, a cone and a voice coil;
one end of the basin frame is connected with the opening end of the U-shaped iron, and the other end of the basin frame is connected with the outer ring of the paper basin;
one end of the voice coil is fixedly connected to the inner ring of the basin frame, and the other end of the voice coil extends into the U-shaped iron;
the centre bore rigid coupling of lower ladder formula centering piece in the outside middle part of voice coil loudspeaker voice coil, the outer border portion rigid coupling of lower ladder formula centering piece in the inboard middle part of basin frame.
8. The loudspeaker of claim 7, wherein a magnetic conductive plate is further disposed inside an end of the voice coil near the U-shaped iron, and a magnet is disposed on a side of the magnetic conductive plate away from the cone.
9. The speaker of claim 8, wherein a dust cap is secured to the cone on a side of the voice coil remote from the U-bar.
10. An artificial intelligence loudspeaker box, characterized in that, comprising the loudspeaker of any one of claims 7-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120998389.9U CN215344927U (en) | 2021-05-11 | 2021-05-11 | Lower step type centering support piece, loudspeaker and artificial intelligent sound box |
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|---|---|---|---|
| CN202120998389.9U CN215344927U (en) | 2021-05-11 | 2021-05-11 | Lower step type centering support piece, loudspeaker and artificial intelligent sound box |
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| CN215344927U true CN215344927U (en) | 2021-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024083222A1 (en) * | 2022-10-21 | 2024-04-25 | 苏州上声电子股份有限公司 | On-board bass shaker and automobile audio system |
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2021
- 2021-05-11 CN CN202120998389.9U patent/CN215344927U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024083222A1 (en) * | 2022-10-21 | 2024-04-25 | 苏州上声电子股份有限公司 | On-board bass shaker and automobile audio system |
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